PERSISTENCE_FOLDER = 'bidding'  # 持久化文件夹,用于存放下载的数据
PERSISTENCE_HTML_FOLDER = f'{PERSISTENCE_FOLDER}/html'  # 存放下载的HTML文件
PERSISTENCE_PDF_FOLDER = f'{PERSISTENCE_FOLDER}/pdf'  # 存放下载的PDF文件
BIDDING_INFO_FILENAME = f'{PERSISTENCE_FOLDER}/bidding.json'  # 页面上招投标文件的信息